CN2868570Y - Pressure bar for pressing cast precasting hole blocking - Google Patents
Pressure bar for pressing cast precasting hole blocking Download PDFInfo
- Publication number
- CN2868570Y CN2868570Y CN 200520010595 CN200520010595U CN2868570Y CN 2868570 Y CN2868570 Y CN 2868570Y CN 200520010595 CN200520010595 CN 200520010595 CN 200520010595 U CN200520010595 U CN 200520010595U CN 2868570 Y CN2868570 Y CN 2868570Y
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- head
- pressure head
- guide rod
- hole
- press
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- Expired - Fee Related
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Abstract
The utility model discloses a pressure bar for blocking of press die casting pre-casting hole, which comprises a guide rod and a pressing head. The tail of the pressing head is matched with axial shaft hole which is arranged in the guide rod and is fixed by tight stopping screws. Axial convex ribs which are used for riveting is equipped in the head circumference of the pressing head. The pressing head of the utility model can be detachable with the guide rod, which facilitates the replacement of the pressing head, saves the manufacturing cost and also improves the tightness of press blocking.
Description
Technical field
The utility model belongs to the press-loading device field, is specifically related to a kind of depression bar that the foundry goods precast hole stops up that press-fits.
Background technology
Engine crankcase, cylinder head be because of the needs of casting and mechanical processing technique, need leave the precast hole of Φ 20 and Φ 30 on the blank of making, and leaks to prevent cooling fluid and lubricating oil, with obstruction precast hole sealed after machined is finished again.The present method of sealing precast hole: be on pressing machine, use special-purpose depression bar, the bowl type stopped up on the pressure head of the depression bar of packing into that the direction that press-fits according to the rules again is pressed into the obstruction of bowl type in the precast hole of workpiece, finish and press-fit sealing.Because depression bar is to adopt the monolithic construction design, promptly is connected with a magnetic pressure head on guide rod.The pressure head of depression bar is a consumable accessory, after pressure head is worn, must change, because the guide rod and the pressure head of depression bar are as a whole, can not dismantle, and can only integral body change during replacing, causes the waste of material, has increased production cost.
Summary of the invention
The purpose of this utility model provides a kind of depression bar that the foundry goods precast hole stops up that press-fits.Its pressure head can split with guide rod, is convenient to change pressure head, saves production cost, and can improve and stop up the fastness that press-fits.
The purpose of this utility model is achieved in that
This depression bar comprises guide rod and pressure head, and the axial hole axis hole that is provided with on the afterbody of pressure head and the guide rod cooperates and fixes with fastening bolt, and the head circumference of pressure head is provided with the axial convex tendon that is used for riveting.
It is interference fits that pressure head cooperates with the axis hole of guide rod.
Axial convex tendon on the pressure head head circumference is made as three at least, and axially convex tendon is distributed on the pressure head head circumference.The length of the length specific head head of the axial convex tendon on the pressure head head circumference is short.
Owing to adopted such scheme, pressure head adopts axis hole to cooperate with guide rod and fixes with fastening bolt, pressure head is connected with guide rod reliably, and can dismantle separately, when needing to change after the pressure head wearing and tearing, the pressure head of wearing and tearing can be disassembled, replace with new pressure head, needn't the integral replacing depression bar, thus can economical with materials, reduce cost.And the axial convex tendon that is used for riveting on the pressure head extrudes depression at blocked hole wall end face, forms the riveting pressure point, makes bowl type stop up can not deviate from from the foundry goods precast hole.
The utility model is described in further detail below in conjunction with accompanying drawing
Description of drawings
Fig. 1 is a structure diagram of the present utility model;
Fig. 2 be among Fig. 1 A-A to cutaway view;
Fig. 3 is the schematic diagram of a kind of embodiment of the present utility model.
The specific embodiment
Referring to Fig. 1, Fig. 2, the cylinder 4 of pressure head 2 afterbodys of this depression bar is inserted in the axial hole 5 that is provided with on the guide rod 1, by crossing cooperation, and from the screwed hole on guide rod 1 circumferential wall pressure head 2 is pressed abd fixed on the guide rod, can not becomes flexible when the work to guarantee pressure head with fastening bolt 8.Pressure head 2 head circumference are provided with three 8, three axial convex tendons 8 of axial convex tendon that are used for riveting and are distributed on the pressure head 2 head circumference.The length of length specific head 2 heads of axial convex tendon 8 that is used for riveting is short, and pressure head head end to the axial distance of convex tendon approximates the hole depth that bowl type stops up.The axial convex tendon that is used for riveting that is provided with more than three on the pressure head 2 head circumference also can reach effect same.
Referring to Fig. 3, when being suitable for this depression bar, depression bar is installed on the pressing machine by guide rod 1, stop up 6 and be placed in the aperture of precast hole 7 of crankcase or cylinder head, the pressure head 2 of depression bar is over against stopping up 6, and pressing machine work makes depression bar will stop up 6 and is pressed into to form in the precast hole 7 of crankcase or cylinder head and seals, simultaneously three convex tendons 8 on the pressure head 2 extrude depression at blocked hole wall end face, form the riveting pressure point, make bowl type stop up can from the hole, not deviate from, to guarantee the fastness and the reliability of sealing.
When pressure head 2 needs to change, unclamp the fastening bolt 3 on the guide rod, pressure head 2 is taken out, the new pressure head of changing 2 is assemblied on the guide rod 1, it is fixing to tighten fastening bolt 3, can use.
Claims (4)
1. one kind press-fits the depression bar that the foundry goods precast hole stops up, comprise guide rod (1) and pressure head (2), it is characterized in that: the afterbody of pressure head (2) cooperates with the axial hole axis hole that guide rod (1) upward is provided with and is fixing with fastening bolt (3), and the head circumference of pressure head (2) is provided with the axial convex tendon (8) that is used for riveting.
2. the depression bar that press-fits the obstruction of foundry goods precast hole according to claim 1 is characterized in that: it is interference fits that pressure head (2) cooperates with the axis hole of guide rod (1).
3. the depression bar that press-fits the obstruction of foundry goods precast hole according to claim 1, it is characterized in that: the axial convex tendon (8) on the pressure head 2 head circumference is made as three at least, and axially convex tendon (8) is distributed on pressure head (2) the head circumference.
4. according to claim 1 or the 3 described depression bars that press-fit the obstruction of foundry goods precast hole, it is characterized in that: the length of length specific head (2) head of the axial convex tendon (8) on pressure head (2) the head circumference is short.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010595 CN2868570Y (en) | 2005-12-22 | 2005-12-22 | Pressure bar for pressing cast precasting hole blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010595 CN2868570Y (en) | 2005-12-22 | 2005-12-22 | Pressure bar for pressing cast precasting hole blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2868570Y true CN2868570Y (en) | 2007-02-14 |
Family
ID=37723501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010595 Expired - Fee Related CN2868570Y (en) | 2005-12-22 | 2005-12-22 | Pressure bar for pressing cast precasting hole blocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2868570Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717397A (en) * | 2017-11-02 | 2018-02-23 | 广西玉柴机器股份有限公司 | The press mounting tool of cylinder head water slug |
-
2005
- 2005-12-22 CN CN 200520010595 patent/CN2868570Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717397A (en) * | 2017-11-02 | 2018-02-23 | 广西玉柴机器股份有限公司 | The press mounting tool of cylinder head water slug |
| CN107717397B (en) * | 2017-11-02 | 2023-11-28 | 广西玉柴机器股份有限公司 | Press fitting tool for cylinder head water blockage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |